Yup - every other watering. Looking at your diary, you can start increasing the dose of nutes, too! Autos don't like a whole lot of nutes to start out with and you've done this brilliantly... but you can increase now, particularly bloom nutes as it's getting close to flowering.
My only other comment on your diary is you're not giving them enough light! Autos need at least 18/6 - I give mine 24/7 with absolutely no ill effects. I'd give your ladies at least one more hour of light a day!
Good luck and happy growing!